Fully anonymous rooms aren't a feature in HipChat. Your display name and mention name are defined at the user level and aren't something that can be changed on a per-room basis.
One option if you wanted to emulate this would be to enable guest access and have anyone who joins the room use the guest URL. This would let each person choose a name of their choice when entering the room. However, it has the drawbacks that you can't chat in the desktop client (guest access is web only) and your history won't be associated with your user.
Earlier this year we made the difficult decision to discontinue our team messaging tools, Stride and Hipchat. The end of life date for Stride and Hipchat Cloud is quickly approaching - February 15, 2...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs